Ground Zero Precision AGBX Set Screw Adjustable Gas Block (QPQ 4140) - .750

$ 77.00

The AGBX set screw adjustable gas block by Ground Zero Precision delivers exceptional performance at a great value. Simple and easy to use single click adjustments allow the shooter to quickly fine tune the gas system for suppression or ammunition variances for smoother weapon operation. Precision CNC machined from 4140 steel with a durable, corrosion resistant salt bath QPQ nitride finish.

  • Metering screw and screw bore design allows for crisp repeatability and reliability
  • Single tool click to adjust gas metering
  • Precision Machined from 4140 Steel
  • Salt Bath QPQ Finish
  • .415" Set Screw Spacing
  • USES STANDARD GAS TUBE
  • Adjustment tool, roll pin and mounting screws included
  • Fits barrels with .750 diameter gas journal